With the addition of wrist loops they can now be used more comfortably and for longer in more demanding conditions.

Ideal as an Emergency Saw and far better with loops than with metal rings as it is so much more comfortable to use. I am sure if anyone selling the metal ring version had actually used one for any period of time they would soon work out that the metal rings really, uncomfortably, dig into your fingers. The loops are FAR better.

Can be used for Escape and Evasion and should be part of every Survival Kit.